Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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On Sale
HK MP5 Hat - Snapback - Flat Brim - OSFM
HKP HK Parts
$14.66 - $22.99HKP MP5 Flat Brim Snapback Hat - OSFM Get your hands on some of our premium hats! Features: Official HKP merchandise 5" wide HKP logoHKP-21451-M$14.66 - $22.99 -
HK MP5K, SP5K Folding Brace
B&T Brugger & Thomet / SB Tactical
$239.95Folding Brace - Swiss - B&T MP5K, SP5K Factory Swiss B&T MP5K, SP5K Folding Pistol Brace with the SB Tactical/B&T components assembled. A rare offering using the B&T Swiss manufactured folding...HKP-19356$239.95 -
Out Of Stock
HK417, MR762, G28 Slim Line Retractable Buttstock
H&K Heckler & Koch
$86.95H&K HK MR762/417/G28 Slim Line Retractable Stock New From HK Germany the slim line retractable stock fits all MR762, HK 417 buffer tubes. Marked with the HK logo and issued on specialized HK 417,...HKP-17135$86.95 -
Out Of Stock
HK91, G3 Fixed Complete, Complete - Surplus
H&K Heckler & Koch
$129.95German G3, 91, PTR Stock complete - Surplus Used black German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition and each stock includes all parts...HKP-18936$129.95 -
On Sale
HK45 Holster - Comp Carry
Comp-Tac
$50.97 - $79.95Comp-Tac HK 45 Full Size Comp Carry Holster This custom made Comp-Tac International OWB holster for your HK pistol that allows you to have the Rail Mount Compensator, Comp Weight, or Match Weight...HKP-20585-M$50.97 - $79.95 -
HK91, G3, PTR Magazine Floorplate - 7.62x51 / .308 - 20 Round
$19.95HK 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine Floor Plate USA made floor plate for HK 91, G3, PTR 91 20-Round Steel and Aluminum Magazines. This floor plate is made in the USA and counts as one US...HKP-18921$19.95 -
Out Of Stock
HK416, MR556 Buffer Tube Castle Nut - A5 Extended
H&K Heckler & Koch
$75.95Heckler and Koch A5 Factory German Extended Castle Nut for HK416 and HK MR556 Original HK Factory German steel 416 A5 Extended Castle Nut. Perfect for MR556, HK 416 A5 builds, or upgrades.HKP-19164$75.95 -
HK MP5 Binary Trigger Group - Navy - Engraved
HKP HK Parts / FA Franklin Armory
$1,299.95HKP HK MP5 Navy Binary Trigger Group - Engraved 3 Position Navy style Engraved Pictograph– HK Binary Trigger Group Our latest and greatest binary trigger group freshly delivered with a factory HK...HKP-21000-M$1,299.95 -
HK SP5K Side-Folding Brace - Skeletonized
HKP HK Parts / SB Tactical
$229.95Side Folding Pistol Stabilizing Brace with HK Parts Adapter - HK MP5K, SP89, SP5K & Clones The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Available...HKP-21056$229.95 -
HK MP5 Optic Mount - RMR - Rear Sight
HKP HK Parts
$97.95HK MP5- RMR Optic Mount: The mounting solution to properly mount your RMR directly to the rear sight base on an MP5 or any other receiver that utilizes the same style rear sight base. The mount is...HKP-20506$97.95 -
HK MP5, HK53 Handguard - Tri-Rail
B&T Brugger & Thomet
$275.00B&T MP5, HK53 Tri-Rail Handguard The B&T handguard 3x NAR is a modular forend system designed for the HK MP5 submachine gun. It offers a versatile and customizable mounting platform for various...HKP-16885$275.00 -
HK VP9 Optic Plate - Shield Sights - Red Dot Pistol Mount
HKP HK Parts
$49.99HK VP9 Optics Mount -Shield Sight Each plate is CNC machined from the best quality billet steel, deburred, tumbled and Cerakoted for the ultimate in durability and appearance. Each unit comes with 2...HKP-20796$49.99